20 September 2021
Capable NZ facilitator Mawera Karetai believes we need to improve control of possums and wallabies.
E whakapono ana a Mawera Karetai, tētahi kaiāwhina o Capable NZ, me whakawhanake tātou i te whakahaereka i kā paihau me kā warapī.
In Eastern Bay of Plenty two pest species, the possum and the wallaby, are well-established. Neither has a natural predator in New Zealand. As a member of the Conservation Board at the time, Mawera Karetai was aware that if the species were not controlled then destruction of the forest canopy by possums and of the forest understory by wallabies could lead to forest collapse which would be a serious environmental loss for the region.
Mawera undertook to investigate this issue for her Masters in Professional Practice, supervised by Malcolm Macpherson and John Gualter. She began by finding out how the possum and wallaby populations had become established. Population characteristics provided clues into how they could be managed going forwards. Mawera also considered how the current pest management system was working.
Her thesis concluded that:
- Possums are a major problem, to which every available resource should be applied (except aerial dropping of 1080 bait poison, due to effects on endemic species of birds, insects and aquatic life).
- Wallabies should be easier to control, indeed it is possible to completely eradicate them.
Mawera hopes that her thesis will be useful for all those involved in conservation estate management and pest control. As she says:
Usefulness is key to happiness!
He maha kā tūmomo riha e rua, ko te paihamu me te warapī tērā, kei te Waiariki ki te Rāwhiti. Kāore he kaipatu māori i kā tūmomo e ura kei Aotearoa. Hei mema o te Conservation Board i taua wā, e mōhio ana a Mawera Karetai, ki te kore e whakahaere i kā tūmomo riha, ka urupatua te kahere a ruka e kā paihamu, te kahere a raro e kā warapī, kātahi ka turakina te kahere, ā, he karotaka ā-taiao taumaha mō te takiwā.
I rakahau a Mawera i tēnei take mō tana Masters in Professional Practice, i arahina e Malcom Macpherson rāua ko John Gualter. Hei tīmataka māna, i pēhea kā taupori paihamu me kā taupori warapī e whakapūmau ana. I whakarato ana kā āhuataka taupori i ētahi tīwhiri hei whakahaere i kā momo e rua mō anamata. I whaiwhakaaro a Mawera ki te pūnaha whakahaere riha o nāianei e mahi ana.
I whakatau tāna tuhika roa:
- He pōraruraru nui kā paihamu, ā, me whakauru kā rauemi katoa (hāuka i te taka i te paitini 1080, nā kā āria kino mō kā manu, mō kā pēpeke, mō kā tamariki a Takaroa hoki.
- He kāwari ake te whakahaereka i kā warapī, ka taea hokia te haepapa te katoa.
E hiahia ana a Mawera, he whaitake tana tuhika roa mā rātou katoa i te whakahaereka ā-taiao, ā-riha hoki. E kīia ana ia:
Mā te whaitake ka harikoa!
Links - Kā honoka
- Contact Mawera Karetai - Whakapā atu ki a Mawera Karetai
- Read Mawera's thesis - Pānuihia te tuhika roa a Mawera